Just to fill out this thread since we are on the subject, these are some boxes for Calibration Components or Reference Ball Ammunition. “Reference Ball” is a calibration cartridge, either for insuring in testing weapons that the ammunition is not to blame for any malfunctions, or to calibrate test gauges for velocity and pressure.
Top Left: Frankford Arsenal .45 Primed Cases, Steel, Copper prime cups, F A 49
Top Right: Frankford Arsenal .45 Primed Cases, Steel, Copper primer cups, F A 51
Center Left: Olin Corporation Reference Ball, brass case, GM FMJ RN
bullet, brass primer, W C C 7 0. Out of the box, these totally lose
their identity, looking exactly like ordinary ball. We have not even
taken on out to put in our own collection.
Center Right: Blount Inc. (CCI - now part of ATK) 9 x 18m/m Makarov
SAAMI Reference Ammunition, aluminum case, Nickel-cup Berdan primer, GM
FMJ RN, N CCI R 9x18 MAKAROV. Again, out of the box, no identity.
Bottom Center: SAAMI Reference Ammunition .25 Auto - no cartridge
specimen. I am sure it had no special markings on the cartridges.
Collection of John L. Moss